Patrick Arnold (born 1966)[1] is an American organic chemist known for introducing androstenedione, 1-androstenediol, and methylhexanamine into the dietary supplement market, and for creating the designer steroid tetrahydrogestrinone, also known as THG and "the clear".
[2] THG, along with two other anabolic steroids that Arnold manufactured (norbolethone and desoxymethyltestosterone (DMT)), not banned at the time of their creation, were hard-to-detect drugs at the heart of the BALCO professional sports doping scandal.
He also took classes on organic synthesis at the University of Connecticut and Montclair State, and "devoured" books on supplements and steroids, studying both approved and unapproved Western drugs and those used by the East Germans in their doping heyday.
Antosh persuaded Arnold to move his research to a small company in Seymour, Illinois, called Bar North America, which was owned by Ramlakhan Boodram.
About this new venture Arnold recalls, "I didn't feel I was jumping into anything more than [a potential problem] with a sports governing body," and attributes his motivation for involvement to his curiosity about the responsiveness of well-trained athletes, as well as pride in his own work.